package com.dotcink.mail;

import java.util.Date; 
import java.util.Properties; 
import javax.activation.CommandMap; 
import javax.activation.DataHandler; 
import javax.activation.DataSource; 
import javax.activation.FileDataSource; 
import javax.activation.MailcapCommandMap; 
import javax.mail.BodyPart; 
import javax.mail.Multipart; 
import javax.mail.PasswordAuthentication; 
import javax.mail.Session; 
import javax.mail.Transport; 
import javax.mail.internet.InternetAddress; 
import javax.mail.internet.MimeBodyPart; 
import javax.mail.internet.MimeMessage; 
import javax.mail.internet.MimeMultipart; 

/**
 * Gmail utilities.
 * @see <a>http://www.jondev.net/articles/Sending_Emails_without_User_Intervention_(no_Intents)_in_Android</a>
 * @author Jon Simon
 *
 */
public class Gmail extends javax.mail.Authenticator { 
	private String _user; 
	private String _pass; 

	private String[] _to; 
	private String _from; 

	private String _port; 
	private String _sport; 

	private String _host; 

	private String _subject; 
	private String _body; 

	private boolean _auth; 

	private boolean _debuggable; 

	private Multipart _multipart; 


	public Gmail() { 
		_host = "smtp.gmail.com"; // default smtp server
		_port = "465"; // default smtp port 
		_sport = "465"; // default socketfactory port 

		_user = ""; // username 
		_pass = ""; // password 
		_from = ""; // email sent from 
		_subject = ""; // email subject 
		_body = ""; // email body 

		_debuggable = false; // debug mode on or off - default off 
		_auth = true; // smtp authentication - default on 

		_multipart = new MimeMultipart(); 

		// There is something wrong with MailCap, javamail can not find a handler for the multipart/mixed part, so this bit needs to be added. 
		MailcapCommandMap mc = (MailcapCommandMap) CommandMap.getDefaultCommandMap(); 
		mc.addMailcap("text/html;; x-java-content-handler=com.sun.mail.handlers.text_html"); 
		mc.addMailcap("text/xml;; x-java-content-handler=com.sun.mail.handlers.text_xml"); 
		mc.addMailcap("text/plain;; x-java-content-handler=com.sun.mail.handlers.text_plain"); 
		mc.addMailcap("multipart/*;; x-java-content-handler=com.sun.mail.handlers.multipart_mixed"); 
		mc.addMailcap("message/rfc822;; x-java-content-handler=com.sun.mail.handlers.message_rfc822"); 
		CommandMap.setDefaultCommandMap(mc); 
	} 

	public Gmail(String user, String pass) { 
		this(); 

		_user = user; 
		_pass = pass; 
	} 

	public boolean send() throws Exception { 
		Properties props = _setProperties(); 

		if(!_user.equals("") && !_pass.equals("") && _to.length > 0 && !_from.equals("") && !_subject.equals("") && !_body.equals("")) { 
			Session session = Session.getInstance(props, this); 

			MimeMessage msg = new MimeMessage(session); 

			msg.setFrom(new InternetAddress(_from)); 

			InternetAddress[] addressTo = new InternetAddress[_to.length]; 
			for (int i = 0; i < _to.length; i++) { 
				addressTo[i] = new InternetAddress(_to[i]); 
			} 
			msg.setRecipients(MimeMessage.RecipientType.TO, addressTo); 

			msg.setSubject(_subject); 
			msg.setSentDate(new Date()); 

			// setup message body 
			BodyPart messageBodyPart = new MimeBodyPart(); 
			messageBodyPart.setText(_body); 
			_multipart.addBodyPart(messageBodyPart); 

			// Put parts in message 
			msg.setContent(_multipart); 

			// send email 
			Transport.send(msg); 

			return true; 
		} else { 
			return false; 
		} 
	} 

	public void addAttachment(String filename) throws Exception { 
		BodyPart messageBodyPart = new MimeBodyPart(); 
		DataSource source = new FileDataSource(filename); 
		messageBodyPart.setDataHandler(new DataHandler(source)); 
		messageBodyPart.setFileName(filename); 

		_multipart.addBodyPart(messageBodyPart); 
	} 

	@Override 
	public PasswordAuthentication getPasswordAuthentication() { 
		return new PasswordAuthentication(_user, _pass); 
	} 

	private Properties _setProperties() { 
		Properties props = new Properties(); 

		props.put("mail.smtp.host", _host); 

		if(_debuggable) { 
			props.put("mail.debug", "true"); 
		} 

		if(_auth) { 
			props.put("mail.smtp.auth", "true"); 
		} 

		props.put("mail.smtp.port", _port); 
		props.put("mail.smtp.socketFactory.port", _sport); 
		props.put("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory"); 
		props.put("mail.smtp.socketFactory.fallback", "false"); 

		return props; 
	} 

	// the getters and setters 
	public String getBody() { 
		return _body; 
	} 

	public void setBody(String _body) { 
		this._body = _body; 
	}

	public void setFrom(String string) {
		_from = string;

	}

	public void setTo(String[] toArr) {
		_to = toArr;

	}

	public void setSubject(String string) {
		_subject = string;

	} 
} 